Portrait of Marie Antoinette, Queen of France (1755-1793), three-quarter-length, seated, at the Conciergerie, Paris, in mourning, with a cameo pendant portraying the Dauphin, holding a life of Mary, Queen of Scots, a bust of Louis XVI and the Testament of 23 December 1792 on the draped table beside inscribed ‘HIS.DE LA.M. DE STUAR[T]’ (lower centre, on the book)

Well admittedly, the author of the article adds the caveat that "Whether or not the real Marie-Antoinette had anything to do with Rousseau is irrelevant." She acknowledges the possibility. And I'd agree with her that Antoinette's early fascination with Rousseau is pretty ironic, considering his egalitarian theories and how he inspired the revolutionaries to, y'know, revolutionize...

Yes. I think what the Queen admired was his back-to-nature philosophy and his ideas on education. But, yes, it is ironic. The real Rousseau gave all of his own children to an orphanage so he would not have to take care of them.